CRISPR

In a lab at George Washington University, painted lady butterflies flutter in mesh houses. This is where assistant professor Arnault Martin and his research group use the new gene-editing technique CRISPR to unlock secrets about the colors and spots on the butterflies’ wings.

CRISPR has allowed them to isolate a precise gene that controls wing appearance, and they can shut it off at will.

There’s a genetic technology that scientists are eager to apply to food, touting its possibilities for things like mushrooms that don’t brown and pigs that are resistant to deadly diseases.

And food industry groups, still reeling from widespread protests against genetically engineered corn and soybeans (aka GMOs) that have made it difficult to get genetically engineered food to grocery store shelves, are looking to influence public opinion.